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There is nothing malicious as it only sends stats on Version Numbers and web address. However this will be sent every time someone completes checkout enabling IWD to monitor the level of custom running through a site.

check this out, I just wrote the author of the extensions a mail,
got an interesting answer, they will look at the problem ( max 30 Minutes)
after 125 Dollar are paid ... thank god there is other extensions
without a rip off factor (at least decent prices)